[INFO] cloning repository https://github.com/simlay/fluent-bit-exercise
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/simlay/fluent-bit-exercise" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimlay%2Ffluent-bit-exercise", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimlay%2Ffluent-bit-exercise'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7e2ea93cb5a852752e4f891c537dabfe721d8460
[INFO] checking simlay/fluent-bit-exercise against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimlay%2Ffluent-bit-exercise" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/simlay/fluent-bit-exercise on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/simlay/fluent-bit-exercise
[INFO] finished tweaking git repo https://github.com/simlay/fluent-bit-exercise
[INFO] tweaked toml for git repo https://github.com/simlay/fluent-bit-exercise written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/simlay/fluent-bit-exercise already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2693d25fe97f6ced171b98c86529422ed4f99963820cbf90b440f894b020ec23
[INFO] running `Command { std: "docker" "start" "-a" "2693d25fe97f6ced171b98c86529422ed4f99963820cbf90b440f894b020ec23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2693d25fe97f6ced171b98c86529422ed4f99963820cbf90b440f894b020ec23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2693d25fe97f6ced171b98c86529422ed4f99963820cbf90b440f894b020ec23", kill_on_drop: false }`
[INFO] [stdout] 2693d25fe97f6ced171b98c86529422ed4f99963820cbf90b440f894b020ec23
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2e03347e94ff5c0bf0e821963e83a7ef100ae7878ae2dee67cd24ef52e430a13
[INFO] running `Command { std: "docker" "start" "-a" "2e03347e94ff5c0bf0e821963e83a7ef100ae7878ae2dee67cd24ef52e430a13", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.74
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]    Compiling vcpkg v0.2.15
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]     Checking hashbrown v0.14.3
[INFO] [stderr]     Checking http v1.1.0
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling openssl v0.10.56
[INFO] [stderr]     Checking mio v0.8.9
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking socket2 v0.5.5
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]    Compiling httparse v1.8.0
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]     Checking try-lock v0.2.4
[INFO] [stderr]     Checking parking_lot_core v0.9.8
[INFO] [stderr]     Checking want v0.3.1
[INFO] [stderr]     Checking tower-layer v0.3.2
[INFO] [stderr]     Checking anstyle-parse v0.2.1
[INFO] [stderr]     Checking anstyle v1.0.2
[INFO] [stderr]    Compiling serde_json v1.0.115
[INFO] [stderr]     Checking base64 v0.21.2
[INFO] [stderr]    Compiling heck v0.5.0
[INFO] [stderr]     Checking clap_lex v0.7.0
[INFO] [stderr]     Checking strsim v0.11.0
[INFO] [stderr]     Checking url v2.4.0
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking encoding_rs v0.8.33
[INFO] [stderr]     Checking anstream v0.6.7
[INFO] [stderr]     Checking sync_wrapper v0.1.2
[INFO] [stderr]     Checking mime v0.3.17
[INFO] [stderr]     Checking ipnet v2.8.0
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]     Checking indexmap v2.2.5
[INFO] [stderr]     Checking clap_builder v4.5.2
[INFO] [stderr]     Checking rustls-pemfile v1.0.4
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]     Checking http-body v1.0.0
[INFO] [stderr]    Compiling syn v2.0.46
[INFO] [stderr]     Checking http-body-util v0.1.1
[INFO] [stderr]    Compiling openssl-sys v0.9.91
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling pin-project-internal v1.1.5
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling clap_derive v4.5.4
[INFO] [stderr]     Checking tokio v1.37.0
[INFO] [stderr]     Checking pin-project v1.1.5
[INFO] [stderr]     Checking clap v4.5.4
[INFO] [stderr]     Checking tokio-util v0.7.8
[INFO] [stderr]     Checking tower v0.4.13
[INFO] [stderr]     Checking tokio-native-tls v0.3.1
[INFO] [stderr]     Checking h2 v0.4.3
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking hyper v1.2.0
[INFO] [stderr]     Checking hyper-util v0.1.3
[INFO] [stderr]     Checking hyper-tls v0.6.0
[INFO] [stderr]     Checking reqwest v0.12.2
[INFO] [stderr]     Checking fluent-bit-exercise v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 28.38s
[INFO] running `Command { std: "docker" "inspect" "2e03347e94ff5c0bf0e821963e83a7ef100ae7878ae2dee67cd24ef52e430a13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e03347e94ff5c0bf0e821963e83a7ef100ae7878ae2dee67cd24ef52e430a13", kill_on_drop: false }`
[INFO] [stdout] 2e03347e94ff5c0bf0e821963e83a7ef100ae7878ae2dee67cd24ef52e430a13
[INFO] checking simlay/fluent-bit-exercise against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimlay%2Ffluent-bit-exercise" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/simlay/fluent-bit-exercise on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/simlay/fluent-bit-exercise
[INFO] finished tweaking git repo https://github.com/simlay/fluent-bit-exercise
[INFO] tweaked toml for git repo https://github.com/simlay/fluent-bit-exercise written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/simlay/fluent-bit-exercise already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2ddc4de51dc0ed07fdad75d45da0c658f5a02153bd555cc916e5da99b4272897
[INFO] running `Command { std: "docker" "start" "-a" "2ddc4de51dc0ed07fdad75d45da0c658f5a02153bd555cc916e5da99b4272897", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2ddc4de51dc0ed07fdad75d45da0c658f5a02153bd555cc916e5da99b4272897", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ddc4de51dc0ed07fdad75d45da0c658f5a02153bd555cc916e5da99b4272897", kill_on_drop: false }`
[INFO] [stdout] 2ddc4de51dc0ed07fdad75d45da0c658f5a02153bd555cc916e5da99b4272897
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b94d173d66a257ad26a8e4dd0b04db2aa688636c902c8e10af8d0c0c6844f064
[INFO] running `Command { std: "docker" "start" "-a" "b94d173d66a257ad26a8e4dd0b04db2aa688636c902c8e10af8d0c0c6844f064", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.74
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]    Compiling vcpkg v0.2.15
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]     Checking http v1.1.0
[INFO] [stderr]    Compiling openssl v0.10.56
[INFO] [stderr]     Checking mio v0.8.9
[INFO] [stderr]     Checking socket2 v0.5.5
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking hashbrown v0.14.3
[INFO] [stderr]    Compiling httparse v1.8.0
[INFO] [stderr]     Checking try-lock v0.2.4
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]     Checking parking_lot_core v0.9.8
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]     Checking want v0.3.1
[INFO] [stderr]     Checking tower-service v0.3.2
[INFO] [stderr]     Checking tower-layer v0.3.2
[INFO] [stderr]     Checking anstyle-parse v0.2.1
[INFO] [stderr]    Compiling serde_json v1.0.115
[INFO] [stderr]     Checking anstyle v1.0.2
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]    Compiling heck v0.5.0
[INFO] [stderr]     Checking strsim v0.11.0
[INFO] [stderr]     Checking base64 v0.21.2
[INFO] [stderr]     Checking clap_lex v0.7.0
[INFO] [stderr]     Checking url v2.4.0
[INFO] [stderr]     Checking encoding_rs v0.8.33
[INFO] [stderr]     Checking ipnet v2.8.0
[INFO] [stderr]     Checking anstream v0.6.7
[INFO] [stderr]     Checking mime v0.3.17
[INFO] [stderr]     Checking sync_wrapper v0.1.2
[INFO] [stderr]     Checking clap_builder v4.5.2
[INFO] [stderr]     Checking indexmap v2.2.5
[INFO] [stderr]     Checking rustls-pemfile v1.0.4
[INFO] [stderr]     Checking http-body v1.0.0
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]     Checking http-body-util v0.1.1
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling syn v2.0.46
[INFO] [stderr]    Compiling openssl-sys v0.9.91
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling pin-project-internal v1.1.5
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling clap_derive v4.5.4
[INFO] [stderr]     Checking tokio v1.37.0
[INFO] [stderr]     Checking pin-project v1.1.5
[INFO] [stderr]     Checking clap v4.5.4
[INFO] [stderr]     Checking tokio-util v0.7.8
[INFO] [stderr]     Checking tower v0.4.13
[INFO] [stderr]     Checking tokio-native-tls v0.3.1
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking h2 v0.4.3
[INFO] [stderr]     Checking hyper v1.2.0
[INFO] [stderr]     Checking hyper-util v0.1.3
[INFO] [stderr]     Checking hyper-tls v0.6.0
[INFO] [stderr]     Checking reqwest v0.12.2
[INFO] [stderr]     Checking fluent-bit-exercise v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 31.48s
[INFO] running `Command { std: "docker" "inspect" "b94d173d66a257ad26a8e4dd0b04db2aa688636c902c8e10af8d0c0c6844f064", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b94d173d66a257ad26a8e4dd0b04db2aa688636c902c8e10af8d0c0c6844f064", kill_on_drop: false }`
[INFO] [stdout] b94d173d66a257ad26a8e4dd0b04db2aa688636c902c8e10af8d0c0c6844f064